package net.minecraft.command;

import java.util.List;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.BlockPos;
import net.minecraft.util.ChatComponentTranslation;

public class CommandEffect extends CommandBase {
	/**
	 * Gets the name of the command
	 */
	public String getCommandName() {
		return "effect";
	}

	/**
	 * Return the required permission level for this command.
	 */
	public int getRequiredPermissionLevel() {
		return 2;
	}

	/**
	 * Gets the usage string for the command.
	 */
	public String getCommandUsage(ICommandSender sender) {
		return "commands.effect.usage";
	}

	/**
	 * Callback when the command is invoked
	 */
	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
		if (args.length < 2) {
			throw new WrongUsageException("commands.effect.usage", new Object[0]);
		} else {
			EntityLivingBase entitylivingbase = (EntityLivingBase) getEntity(sender, args[0], EntityLivingBase.class);

			if (args[1].equals("clear")) {
				if (entitylivingbase.getActivePotionEffects().isEmpty()) {
					throw new CommandException("commands.effect.failure.notActive.all",
							new Object[] { entitylivingbase.getName() });
				} else {
					entitylivingbase.clearActivePotions();
					notifyOperators(sender, this, "commands.effect.success.removed.all",
							new Object[] { entitylivingbase.getName() });
				}
			} else {
				int i;

				try {
					i = parseInt(args[1], 1);
				} catch (NumberInvalidException numberinvalidexception) {
					Potion potion = Potion.getPotionFromResourceLocation(args[1]);

					if (potion == null) {
						throw numberinvalidexception;
					}

					i = potion.id;
				}

				int j = 600;
				int l = 30;
				int k = 0;

				if (i >= 0 && i < Potion.potionTypes.length && Potion.potionTypes[i] != null) {
					Potion potion1 = Potion.potionTypes[i];

					if (args.length >= 3) {
						l = parseInt(args[2], 0, 1000000);

						if (potion1.isInstant()) {
							j = l;
						} else {
							j = l * 20;
						}
					} else if (potion1.isInstant()) {
						j = 1;
					}

					if (args.length >= 4) {
						k = parseInt(args[3], 0, 255);
					}

					boolean flag = true;

					if (args.length >= 5 && "true".equalsIgnoreCase(args[4])) {
						flag = false;
					}

					if (l > 0) {
						PotionEffect potioneffect = new PotionEffect(i, j, k, false, flag);
						entitylivingbase.addPotionEffect(potioneffect);
						notifyOperators(sender, this, "commands.effect.success",
								new Object[] {
										new ChatComponentTranslation(potioneffect.getEffectName(), new Object[0]),
										Integer.valueOf(i), Integer.valueOf(k), entitylivingbase.getName(),
										Integer.valueOf(l) });
					} else if (entitylivingbase.isPotionActive(i)) {
						entitylivingbase.removePotionEffect(i);
						notifyOperators(sender, this, "commands.effect.success.removed",
								new Object[] { new ChatComponentTranslation(potion1.getName(), new Object[0]),
										entitylivingbase.getName() });
					} else {
						throw new CommandException("commands.effect.failure.notActive",
								new Object[] { new ChatComponentTranslation(potion1.getName(), new Object[0]),
										entitylivingbase.getName() });
					}
				} else {
					throw new NumberInvalidException("commands.effect.notFound", new Object[] { Integer.valueOf(i) });
				}
			}
		}
	}

	public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
		return args.length == 1 ? getListOfStringsMatchingLastWord(args, this.getAllUsernames())
				: (args.length == 2 ? getListOfStringsMatchingLastWord(args, Potion.func_181168_c())
						: (args.length == 5 ? getListOfStringsMatchingLastWord(args, new String[] { "true", "false" })
								: null));
	}

	protected String[] getAllUsernames() {
		return MinecraftServer.getServer().getAllUsernames();
	}

	/**
	 * Return whether the specified command parameter index is a username parameter.
	 */
	public boolean isUsernameIndex(String[] args, int index) {
		return index == 0;
	}
}
